Resuggestion, thanks to Randy for the info!

Sale 1:

https://backpack.tf/profiles/76561198140010255#!/compare/1537056000/1537142400

https://backpack.tf/profiles/76561198013648629#!/compare/1537315200/1537401600

Keys?

Sale 2:

https://backpack.tf/profiles/76561197964027496#!/compare/1537833600/1539388800

https://backpack.tf/profiles/76561198289262378#!/compare/1537660800/1539129600

Untrace

Sale 3:

https://backpack.tf/profiles/76561198056531196#!/compare/1539216000/1539302400

Untrace

Sale 4

https://backpack.tf/profiles/76561198056531196#!/compare/1539388800/1539475200

https://backpack.tf/profiles/76561198112336424#!/compare/1539388800/1539475200

Untrace

Sale 5:

https://backpack.tf/profiles/76561198210673328#!/compare/1535500800/1535587200

https://backpack.tf/profiles/76561198069493147#!/compare/1535414400/1535500800

Bulk

Sale 6:

https://backpack.tf/profiles/76561198069493147#!/compare/1536278400/1536364800

https://backpack.tf/profiles/76561198304009353#!/compare/1536192000/1536364800

Bulk

Sale 7:

https://backpack.tf/profiles/76561198304009353#!/compare/1537228800/1537315200

https://backpack.tf/profiles/76561198144346135#!/compare/1537142400/1537315200

Bulk

Sale 8:

https://backpack.tf/profiles/76561198144346135#!/compare/1537315200/1537401600

https://backpack.tf/profiles/76561198054198170#!/compare/1537315200/1537401600

Sold for 32 keys + ToD ticket

Sale 9:

https://backpack.tf/profiles/76561198054198170#!/compare/1539648000/1539907200

https://backpack.tf/profiles/76561198160856661#!/compare/1539734400/1539820800

Bulk

Sale 10:

https://backpack.tf/profiles/76561198160856661#!/compare/1539993600/1540080000

QS to stn.tf

Sale 11:

https://backpack.tf/profiles/76561198056571743#!/compare/1534982400/1535241600

https://backpack.tf/profiles/76561198403667851#!/compare/1535155200/1535241600

Looks high

Sale 12:

https://backpack.tf/profiles/76561198090147535#!/compare/1535155200/1535241600

https://backpack.tf/profiles/76561198182213262#!/compare/1535155200/1535241600

Sold with 14 keys for Stormy Stash(51)

Total is 37 keys

Sale 13:

https://backpack.tf/profiles/76561198403667851#!/compare/1535155200/1535241600

https://backpack.tf/profiles/76561198090147535#!/compare/1535155200/1535241600

Something for Frostbite Pillar, not using.

Sale 14:

https://backpack.tf/profiles/76561198182213262#!/compare/1538352000/1538524800

https://backpack.tf/profiles/76561198813613621#!/compare/1538352000/1538438400

Bulk

Sale 15:

https://backpack.tf/profiles/76561198813613621#!/compare/1538438400/1538524800

Sold with 10 keys for Scorching Fat Man's

Use there

Sale 16, 17:

https://backpack.tf/item/6373537698

https://backpack.tf/item/6897224277

https://marketplace.tf/items/30912;5;u14

Sold for 60, 59 USD

Keys at 1.84, 1.78 USD

Totals are 32.61, 33.15 keys

Sale 18:

https://backpack.tf/profiles/76561198081793950#!/compare/1535155200/1535328000

https://backpack.tf/profiles/76561198320412894#!/compare/1534982400/1535328000

Untrace

Sale 19:

https://backpack.tf/profiles/76561198320412894#!/compare/1534982400/1535328000

https://backpack.tf/profiles/76561198126155258#!/compare/1535241600/1535328000

Sold for Blizzardy HWAH + Searing Mongolian + Stormy Slick Cut(17.5)

Mong Mini:

https://backpack.tf/suggestion/5bcd657044325a21f631e233

Suggestion for 9 keys

HWAH Mini:

https://backpack.tf/suggestion/5bccca0ecf6c75411d6a62cf

Suggestion for 9 keys

Total is 35.5 keys

Sale 20:

https://backpack.tf/profiles/76561198126155258#!/compare/1535328000/1535414400

https://backpack.tf/profiles/76561198123631904#!/compare/1536364800/1536537600

Untrace

Sale 21:

https://backpack.tf/item/6897224277

Rest of history looks like gambling, all sales are untrace.

Total sales @:

32, 32.61, 33.15, 35.5, 37 keys

Buyers up to 33 keys,

Randy's Part:

sale for 44 here by the looks of it, looks like you have a new high end - https://backpack.tf/profiles/76561198112336424#!/compare/1540166400/1540252800

Taking 36 - 44 keys